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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
In a motor control function block program, conditional block are used. Which of the answers below is best described as a condition that must remain TRUE for a device can stay activated?
The addition of BCC to the message frame increases the efficiency of detecting errors in transmissions. which one of the error check systems based on a mathematical expression and is available to be used on data frames too large for any other method of error checking?
Model based network devices are at the user level of Ethernet/IP. Information of a devices type and classification would be contained in which of the text files below?
There are several data access methods used to transmit data. Which of the answers below can be described as a method that is suitable for larger networks?
In the protocol specifications of Modbus, there are only four types of registers that can be accessed by the master. Which of the terms below is best described as a analog output memory location?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below should have the longest response times?
In the process conditions model, there are transition points between the stages of operating conditions. Which of the answers below is the signals conditions moving from abnormal to shutdown conditions?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that coverts the analog signals from T/Cs and RTDs to a digital signal?
DCS commonly is considered a computerised control system for a plant that has central operator supervisory control. Which of the terms below is best described as controllers and operator stations that are separated physically from the central control system?
All the wired network components interact with ISO layers. Which of the answers below reflects the ISO layers that the router interacts with?
Historical data can be logged through a HMI application. Which of the data storage methods below would best be described as one that looses resolution of the data, although reduces the volume of data?
In a typical GUI, values take one of four generic indicators. Which of the indicators below would best represent the image below?
The data link layer of the OSI manages access to be able to transmit data. Which of the answers below represents a all typical access method?
The standard recommended by ISA-18.2 is for 3-4 priority level alarms to be used. Which of the alarm priority levels below can best be described as aggressive upset conditions that would require operator intervention within an appropriate time period?
There are many options to choose from for alarm attributes. Which of the following alarm attributes would best be used when a process regularly exceeds it's limits for a brief period of time?
There are several different network access methods available to wired Ethernet. Which of the methods below is the one used by wired Ethernet?
Voltage to voltage converters are best defined as which of the answers below?
Ethernet network components provide several ISO layers of transmission control. Which of the network components below has transmission controls on the ISO network layer and possibly the data link layers?
In a typical GUI, values take one of four generic indicators. Which of the indicators below would best be used for an analog value that has no need of significant accuracy?
There are numerous I/O modules that a typical DCS has access to. Which of the modules below is described as one that converts 8 or 16 inputs to a digital signal?
There are an assortment of numbers on the typical protocol header. Which of the answers below denotes the header number that identifies the systems application/service for receiving or transmitting data?
The OSI model describes how a network should be arranged. Which of the layers below defines the network hardware and electrical signalling method of a network?
Which of the components below best represents the letter "A"?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would make use of a HART protocol?
Which of the error detection methods below best relates to an "effectiveness of 90%"?